/* Design System & Variables */
:root {
  /* Common variables */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.08);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-glow: 0 0 20px 0px rgba(0, 101, 244, 0.25);
  
  /* Light Theme Variables */
  --bg-gradient: #F5F7FF;
  --bg-app: #F0F5F9;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FFFFFF;
  --border-color: rgba(226, 232, 240, 0.8);
  --border-focus: #0065F4;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --primary: #0065F4;
  --primary-hover: #0052c9;
  --primary-light: rgba(0, 101, 244, 0.1);
  --secondary: #64748b;
  --secondary-hover: #475569;
  --secondary-light: #e2e8f0;
  
  --danger: #ef4444;
  --danger-hover: #dc2626;

  /* Receipt Specific Styles - Light Theme */
  --receipt-bg: #ffffff;
  --receipt-text: #1e293b;
  --receipt-meta: #64748b;
  --receipt-line: #cbd5e1;
  --receipt-shadow: 0 15px 30px -10px rgba(148, 163, 184, 0.3);
}

/* Dark Theme Variables */
.dark-theme {
  --bg-gradient: linear-gradient(135deg, #090d16 0%, #0f172a 100%);
  --bg-app: #0b0f19;
  --bg-card: rgba(15, 23, 42, 0.65);
  --bg-card-hover: rgba(15, 23, 42, 0.75);
  --border-color: rgba(51, 65, 85, 0.5);
  --border-focus: #0065F4;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --primary: #0065F4;
  --primary-hover: #3b82f6;
  --primary-light: rgba(0, 101, 244, 0.15);
  --secondary: #334155;
  --secondary-hover: #475569;
  --secondary-light: rgba(51, 65, 85, 0.3);
  
  --danger: #f87171;
  --danger-hover: #ef4444;

  /* Receipt Specific Styles - Dark Theme */
  --receipt-bg: #1e293b;
  --receipt-text: #f8fafc;
  --receipt-meta: #94a3b8;
  --receipt-line: #334155;
  --receipt-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-gradient);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  padding: 0;
  transition: background var(--transition-slow), color var(--transition-normal);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* App Container Layout */
.app-container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex-grow: 1;
  gap: 1.5rem;
}

/* Header Styling */
.app-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 1.25rem 2.5rem;
  border-bottom: 1px solid var(--border-color);
  gap: 1.5rem;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-img-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  transition: filter var(--transition-normal);
}

.dark-theme .brand-img-logo {
  filter: invert(1);
  mix-blend-mode: screen;
}

body:not(.dark-theme) .brand-img-logo {
  mix-blend-mode: multiply;
}

.sub-brand {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.header-actions {
  display: flex;
  gap: 0.75rem;
  justify-self: end;
}

.icon-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: var(--secondary-light);
  border-color: var(--text-muted);
  transform: translateY(-2px);
}

.icon-btn:active {
  transform: translateY(0);
}

/* Main Grid Layout - Inputs Panel */
#inputs-view {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: 100%;
}

.inputs-columns-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: start;
  width: 100%;
}

.inputs-left {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.inputs-right {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Card Design System */
.card {
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition-normal);
}

.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 101, 244, 0.3);
  box-shadow: var(--shadow-lg);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.header-icon {
  color: var(--primary);
}

.card-header h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
}

/* Input Fields Design */
.input-group {
  margin-bottom: 1.25rem;
}

.input-group:last-child {
  margin-bottom: 0;
}

.input-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.unit {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
}

.info-tooltip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: var(--secondary-light);
  color: var(--text-secondary);
  border-radius: 50%;
  font-size: 0.7rem;
  cursor: help;
  margin-left: 4px;
  font-weight: 700;
  vertical-align: middle;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-wrapper input {
  width: 100%;
  padding: 0.85rem 1rem;
  padding-right: 2.5rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  background: var(--bg-app);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.input-wrapper input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 4px rgba(0, 101, 244, 0.15);
  background: var(--bg-card);
}

.input-suffix {
  position: absolute;
  right: 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  pointer-events: none;
}

/* Select Dropdown Design */
.select-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.select-wrapper select {
  width: 100%;
  padding: 0.85rem 1rem;
  padding-right: 2.5rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  background: var(--bg-app);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  transition: all var(--transition-fast);
}

.select-wrapper select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 4px rgba(0, 101, 244, 0.15);
  background: var(--bg-card);
}

.select-wrapper select optgroup {
  margin-top: 16px;
  margin-bottom: 8px;
  padding-top: 8px;
  padding-bottom: 8px;
}

.select-wrapper select option {
  padding-top: 6px;
  padding-bottom: 6px;
}

.select-arrow {
  position: absolute;
  right: 1.25rem;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
}

/* Button UI */
.btn {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
  border: 1.5px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-primary-outline:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-primary-outline:active {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
  border-style: solid;
}

.btn-secondary:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-secondary:active {
  transform: translateY(0);
}

.action-buttons-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

/* Results Display Area */
#results-view {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  width: 100%;
}

.results-header {
  position: absolute;
  left: 0;
  top: 0;
  width: auto;
}

.results-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: 100%;
  max-width: 500px;
}

/* Receipt Styling - Premium Invoice Sheet */
.receipt-container {
  perspective: 1000px;
}

.receipt-paper {
  background: var(--receipt-bg);
  color: var(--receipt-text);
  padding: 2rem;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--receipt-shadow);
  position: relative;
  transition: background var(--transition-slow), color var(--transition-normal);
  transform-style: preserve-3d;
  animation: receipt-slide 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes receipt-slide {
  from {
    opacity: 0;
    transform: translateY(30px) rotateX(-5deg);
  }
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0deg);
  }
}

.receipt-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.receipt-header h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.2px;
  text-transform: uppercase;
}

.receipt-date {
  font-size: 0.75rem;
  color: var(--receipt-meta);
  margin-top: 0.25rem;
}

.receipt-divider-dash {
  border-bottom: 2px dashed var(--receipt-line);
  margin-top: 1rem;
  height: 0;
}

.receipt-divider-dots {
  border-bottom: 2px dotted var(--receipt-line);
  margin: 1rem 0;
  height: 0;
}

.receipt-divider-double {
  border-bottom: 4px double var(--receipt-line);
  margin: 1rem 0;
  height: 0;
}

.receipt-details {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.receipt-row-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--receipt-meta);
}

.receipt-row-meta strong {
  color: var(--receipt-text);
  font-weight: 600;
}

.receipt-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.row-label {
  display: flex;
  flex-direction: column;
}

.row-sub-label {
  font-size: 0.75rem;
  color: var(--receipt-meta);
  margin-top: 0.1rem;
}

.row-val {
  font-family: var(--font-display);
  font-weight: 600;
}

.row-val-bold {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
}

.receipt-subtotal {
  font-weight: 600;
}

.receipt-margin {
  color: var(--text-secondary);
}

/* Grand Total Banner */
.receipt-total-banner {
  background: var(--primary-light);
  border: 1px dashed var(--primary);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
  transition: all var(--transition-normal);
}

.receipt-total-label {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--primary);
}

.receipt-total-amount {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  text-shadow: 0 2px 10px rgba(0, 101, 244, 0.1);
}

/* Beautiful Zig-Zag Receipt bottom cut */
.receipt-footer-cut {
  content: "";
  display: block;
  width: 100%;
  height: 12px;
  background: linear-gradient(-45deg, var(--receipt-bg) 6px, transparent 0), 
              linear-gradient(45deg, var(--receipt-bg) 6px, transparent 0);
  background-position: left top;
  background-repeat: repeat-x;
  background-size: 12px 12px;
  transform: translateY(-1px); /* avoid 1px render gap */
  filter: drop-shadow(0 8px 10px rgba(0, 0, 0, 0.15));
}

.share-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.btn-iconic svg {
  transition: transform var(--transition-fast);
}

.btn-iconic:hover svg {
  transform: scale(1.1);
}

/* Dialog / Modal Design System */
.settings-modal {
  border: none;
  border-radius: var(--radius-lg);
  background: transparent;
  outline: none;
  margin: auto;
  max-width: 550px;
  width: 90%;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.glass-modal {
  background: var(--bg-card);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid var(--border-color);
}

.settings-modal::backdrop {
  background: rgba(9, 13, 22, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: backdrop-fade 0.3s ease-out forwards;
}

@keyframes backdrop-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  display: flex;
  flex-direction: column;
  max-height: 85vh;
}

.modal-header {
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.close-btn:hover {
  background: var(--secondary-light);
  color: var(--text-primary);
}

.modal-form {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.form-scrollable {
  padding: 1.5rem;
  overflow-y: auto;
  max-height: 55vh;
}

.form-section-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--primary);
  margin-bottom: 1rem;
  margin-top: 1rem;
}

.form-section-title:first-child {
  margin-top: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 480px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-group input {
  width: 100%;
  padding: 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  background: var(--bg-app);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.form-group input:focus {
  border-color: var(--border-focus);
  background: var(--bg-card);
}

/* Finishes Settings Section Styling */
#finishes-settings-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 250px;
  overflow-y: auto;
  padding-right: 0.5rem;
  margin-bottom: 0.5rem;
}

.finish-settings-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.finish-settings-row input[type="text"] {
  flex: 2;
  padding: 0.65rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--bg-app);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.finish-settings-row input[type="text"]:focus {
  border-color: var(--border-focus);
  background: var(--bg-card);
}

.finish-settings-row input[type="number"] {
  flex: 1;
  padding: 0.65rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--bg-app);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.finish-settings-row input[type="number"]:focus {
  border-color: var(--border-focus);
  background: var(--bg-card);
}

.finish-settings-row .delete-finish-btn {
  background: transparent;
  border: none;
  color: var(--status-error);
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  width: 32px;
  height: 32px;
}

.finish-settings-row .delete-finish-btn:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  background: var(--bg-app);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

/* Toast styling */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #1e293b;
  color: #f8fafc;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
  z-index: 9999;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: transform var(--transition-normal);
  pointer-events: none;
}

.toast.visible {
  transform: translateX(-50%) translateY(0);
}

.hidden {
  display: none !important;
}

/* Enabled Components Switchboard */
.toggle-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.toggle-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  padding: 0.2rem 0;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.toggle-label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.toggle-item:hover .toggle-label {
  color: var(--text-primary);
}

/* Switch styling */
.toggle-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 44px;
  height: 24px;
  background-color: var(--secondary-light);
  border-radius: 9999px;
  position: relative;
  outline: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
}

.toggle-item input[type="checkbox"]:checked {
  background-color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 0 10px rgba(0, 101, 244, 0.2);
}

.toggle-item input[type="checkbox"]::before {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: #ffffff;
  top: 2px;
  left: 2px;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.toggle-item input[type="checkbox"]:checked::before {
  transform: translateX(22px);
}

/* Disabled styling for weight input fields when inactive */
.input-group {
  transition: opacity var(--transition-normal);
}

/* Page Segmented Switch Styling */
.segmented-control {
  position: relative;
  display: flex;
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 9999px;
  padding: 4px;
  width: 340px;
  margin: 0;
  border: 1.5px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.segmented-control input[type="radio"] {
  display: none;
}

.segment-label {
  flex: 1;
  text-align: center;
  padding: 0.55rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  z-index: 2;
  border-radius: 9999px;
  transition: color var(--transition-fast), transform var(--transition-fast);
  user-select: none;
  white-space: nowrap;
}

.segment-label:hover {
  color: var(--text-primary);
}

.segment-label:active {
  transform: scale(0.96);
}

.segmented-control input[type="radio"]:checked + .segment-label {
  color: #ffffff;
}

/* Sliding indicator */
.segmented-control .slider {
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 4px;
  width: calc(50% - 6px); /* Default to 50% for 2-button main layout */
  background: var(--primary);
  border-radius: 9999px;
  box-shadow: 0 4px 12px rgba(0, 101, 244, 0.35);
  transition: transform var(--transition-normal);
  z-index: 1;
}

#page-zinc:checked ~ .slider {
  transform: translateX(0);
}

#page-by-design:checked ~ .slider {
  transform: translateX(calc(100% + 4px));
}

/* Sub-toggle layout overrides */
.sub-toggle-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  max-width: 340px;
  width: 100%;
  margin: 0 auto 0.5rem auto;
}

.sub-toggle-wrapper.hidden {
  display: none !important;
}

.sub-toggle-wrapper .segmented-control.sub-toggle {
  grid-column: 1;
  grid-row: 1;
  margin: 0 auto;
}

#zinc-subtype-container,
#by-design-subtype-container {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

#zinc-subtype-container.hidden,
#by-design-subtype-container.hidden {
  opacity: 0;
  visibility: hidden !important;
  pointer-events: none !important;
}

.segmented-control.sub-toggle {
  max-width: 340px;
  width: 100%;
  margin: 0 auto;
}

/* Sub-toggles slider widths and translations */
#zinc-subtype-container .slider {
  width: calc(33.333% - 5.333px); /* 3 options (MS, Zinc Puller, Zinc Label) */
}

#ms:checked ~ .slider {
  transform: translateX(0);
}

#zinc-puller:checked ~ .slider {
  transform: translateX(calc(100% + 2px));
}

#zinc-label:checked ~ .slider {
  transform: translateX(calc(200% + 4px));
}

#by-design-subtype-container .slider {
  width: calc(50% - 6px); /* 2 options (MS, Zinc) */
}

#by-design-ms:checked ~ .slider {
  transform: translateX(0);
}

#by-design-zinc:checked ~ .slider {
  transform: translateX(calc(100% + 4px));
}

@media (max-width: 768px) {
  .segmented-control.sub-toggle {
    max-width: 100%;
  }
}

/* Footer Warning */
.app-footer {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.warning-text {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--danger);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  opacity: 0.85;
}

/* Responsiveness - Media Queries */
@media (max-width: 900px) {
  .app-container {
    padding: 1.5rem 1rem;
  }
  
  .inputs-columns-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .app-header {
    grid-template-columns: 1fr auto;
    row-gap: 1rem;
    padding: 1rem 1.5rem;
  }
  
  .app-header .segmented-control {
    grid-column: 1 / -1;
    max-width: 100%;
    width: 100%;
    order: 3;
    margin: 0.5rem 0 0 0;
  }
  
  .header-actions {
    grid-column: 2;
    order: 2;
  }
  
  .brand {
    grid-column: 1;
    order: 1;
  }

  .results-header {
    position: static;
    margin-bottom: 0.5rem;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .brand-img-logo {
    height: 32px;
  }
  
  .sub-brand {
    font-size: 0.65rem;
    letter-spacing: 1px;
  }
  
  .app-container {
    padding: 1rem 0.75rem;
  }
  
  .receipt-paper {
    padding: 1.25rem;
  }
  
  .receipt-total-amount {
    font-size: 1.4rem;
  }
}

/* Mini Select inside Toggle Items */
.mini-select {
  width: 140px;
}
.mini-select select {
  padding: 0.35rem 0.75rem !important;
  padding-right: 1.75rem !important;
  font-size: 0.85rem !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  background: var(--bg-app) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-primary) !important;
}
.mini-select select:focus {
  border-color: var(--border-focus) !important;
  box-shadow: 0 0 0 3px rgba(0, 101, 244, 0.1) !important;
}
.mini-select .select-arrow {
  right: 0.75rem !important;
}

/* Gauge Checkboxes Premium Styling */
.form-group input.gauge-checkbox {
  appearance: checkbox !important;
  -webkit-appearance: checkbox !important;
  width: 18px !important;
  height: 18px !important;
  padding: 0 !important;
  margin: 0 !important;
  border-radius: 4px !important;
  background-color: var(--bg-app) !important;
  border: 1.5px solid var(--border-color) !important;
  cursor: pointer !important;
  accent-color: var(--primary) !important;
  outline: none !important;
}

/* Print Styling Override */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
    font-size: 12pt;
    padding: 0;
    margin: 0;
  }
  
  .app-container {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .app-header, 
  #inputs-view, 
  .results-header, 
  .share-actions, 
  #theme-toggle, 
  #settings-btn, 
  .toast,
  .app-footer,
  dialog {
    display: none !important;
  }
  
  #results-view {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
  }
  
  .receipt-container {
    perspective: none !important;
  }
  
  .receipt-paper {
    background: #ffffff !important;
    color: #000000 !important;
    box-shadow: none !important;
    padding: 0 !important;
    border: none !important;
    animation: none !important;
    transform: none !important;
  }
  
  .receipt-footer-cut {
    display: none !important;
  }
  
  .receipt-divider-dash {
    border-bottom: 1.5px dashed #000000 !important;
  }
  
  .receipt-divider-dots {
    border-bottom: 1.5px dotted #000000 !important;
  }
  
  .receipt-divider-double {
    border-bottom: 3px double #000000 !important;
  }
  
  .receipt-total-banner {
    background: transparent !important;
    border: 2px dashed #000000 !important;
    color: #000000 !important;
  }
  
  .receipt-total-label,
  .receipt-total-amount {
    color: #000000 !important;
  }
}

/* ==========================================================================
   LOGIN SCREEN VIEW STYLES
   ========================================================================== */
.login-view-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: #f8fafc;
  z-index: 10000;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.login-view-panel.hidden {
  display: none !important;
}

.login-card {
  background: #ffffff;
  padding: 3rem 2.5rem;
  border-radius: 20px;
  width: 90%;
  max-width: 440px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid #f1f5f9;
  box-sizing: border-box;
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.login-img-logo {
  height: 36px;
  width: auto;
  border-radius: 6px;
}

.login-logo span {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.5px;
  color: #0f172a;
}

.login-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.85rem;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 0.5rem 0;
}

.login-subtitle {
  font-size: 0.95rem;
  color: #64748b;
  margin: 0 0 2rem 0;
  font-weight: 500;
}

#login-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.login-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}

.login-input-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: #2563eb;
  text-align: left;
}

.login-input-group input {
  padding: 0.85rem 1rem;
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  font-size: 0.95rem;
  color: #0f172a;
  width: 100%;
  box-sizing: border-box;
  background-color: #f8fafc;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.login-input-group input::placeholder {
  color: #94a3b8;
}

.login-input-group input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  outline: none;
  background-color: #ffffff;
}

.login-error {
  color: #ef4444;
  font-size: 0.85rem;
  font-weight: 600;
  width: 100%;
  text-align: center;
  margin-top: -0.25rem;
}

.login-error.hidden {
  display: none !important;
}

.login-btn {
  width: 100%;
  padding: 0.9rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  margin-top: 0.5rem;
  background-color: #2563eb;
  border: none;
  color: #ffffff;
  cursor: pointer;
  transition: background-color 0.2s;
}

.login-btn:hover {
  background-color: #1d4ed8;
}

/* Dark Mode support for Login */
body.dark .login-view-panel {
  background-color: #0f172a;
}

body.dark .login-card {
  background: #1e293b;
  border-color: #334155;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

body.dark .login-logo span,
body.dark .login-title {
  color: #f8fafc;
}

body.dark .login-subtitle {
  color: #94a3b8;
}

body.dark .login-input-group input {
  background-color: #0f172a;
  border-color: #334155;
  color: #f8fafc;
}

body.dark .login-input-group input:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
  background-color: #1e293b;
}

body.dark .login-input-group label {
  color: #3b82f6;
}